The Emotional State Biofeedback Wearable (currently taking orders here) is your perfect answer especially if you are looking for ways on how to gauge your productivity, focus and stress without worrying about bulky cords or power outlets.
Thanks to this uniquely designed biofeedback device, simply clip it on your waistband to start tracking the flow and ebb of your abdomen when you start breathing.

The Emotional State Biofeedback Wearable
This biofeedback wearable is unique because besides monitoring your breathing pattern especially when you are experiencing different levels of emotions, the biofeedback then will alert you of any changes because it already understands your baselines.
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This wearable biofeedback device already comes with a free application designed to help detect any distractions including the changes in your emotional state that are not perfect for productivity including fatigue, lack of focus and even procrastination.